Write a program using the XLAT instruction that will read a letter from the keyboard that is one of the first 9 letters (a through i) and will output a number 1 through 1 number 9; output the number 1 if it is the letter a, output the letter 2 if it is the letter b, etc. Results: Explain how the program works. Reference for reading from the keyboard. A program to get a character from the keyboard (without testing if a character is ready) and place that character in location 400 is as follows: SUB AH, AH INT 16H MOV [400], AL INT 20H Reference for writing to the screen. MOV DL, 41: VALUE for THE LETTER A IN ASCII. MOV AH, 02; SERVICE FOR WRITING TO SCREEN IS 02 AND INT 21 INT21H; WRITE CHARACTER FROM DL REG. TO THE SCREEN